package com.shashi.framework.crosscutting.logging;

import java.lang.reflect.Method;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.aop.AfterReturningAdvice;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.ThrowsAdvice;

/**
 * @author shashikantmore
 *
 */
public class LoggingInterceptor implements MethodBeforeAdvice, AfterReturningAdvice, ThrowsAdvice {
	/**
	 * 
	 */
	private static Log log = null;

	/**
	 * 
	 */
	public LoggingInterceptor() {
	}

	/* (non-Javadoc)
	 * @see org.springframework.aop.MethodBeforeAdvice#before(java.lang.reflect.Method, java.lang.Object[], java.lang.Object)
	 */
	public void before(Method arg0, Object[] arg1, Object arg2)
			throws Throwable {
		log = LogFactory.getLog(arg2.getClass());
		log.info("Beginning method: " + arg0.getName());
	}

	/* (non-Javadoc)
	 * @see org.springframework.aop.AfterReturningAdvice#afterReturning(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], java.lang.Object)
	 */
	public void afterReturning(Object arg0, Method arg1, Object[] arg2,
			Object arg3) throws Throwable {
		log = LogFactory.getLog(arg3.getClass());
		log.info("Ending method: " + arg1.getName());
	}

	/**
	 * @param m
	 * @param args
	 * @param target
	 * @param ex
	 */
	public void afterThrowing(Method m, Object[] args, Object target,
			Throwable ex) {
		log = LogFactory.getLog(target.getClass());
		log.info("Exception in method: " + m.getName() + " Exception is: " + ex.getMessage());
	}

}
